Stamp-canceler



(Model.)`

A.. LANDON.

STAMP GANCBLER.

No. 283,902. Patented Aug. 28, 1883.

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ALBERT LANDON, OF RUTLAND, VERMONT.

STAM P-CANCELER.

SPECIFICATION forming part of Letters Patent No. 283,902, dated August28, 1883.

Application filed October G, 1882.

T0 @ZZ whom it may concern:

Be it known that I, ALBERT LANDON, a citizen of the United States,residing in the city and county of Rutland, and IState of Vermont, haveinvented a new and `useful Stamp-Canceler, of which the following is aspecification.

My invention relates to an improved stampcanceler wherein two or moreoscillating erasing-Scrapers with eccentric erasing-surfaces areemployed, and which scrapers oscillate, respectively, in oppositedirections, and are arranged closely together, so as to have no spacersbetween them, and, if more than two are used, one scraper being arrangedbetween two other Scrapers, and wherein the stroke of said oscillatingscrapers can be adjusted, to vary the depth of cut of the two series,and wherein the parts can be readily separated, and whereby apost-office marker and canceler together and a canceler alone may beused on the same handle without the removal ofthe marker.

The main objects of my invention are, first, to produce an undet'achederased surface upon the stamp or other object; second, to avoid thetwisting strain ,upon the stamp and envelope or other object which iscaused by two reversely-moving Scrapers arranged at a distance.laterally from each together and moving in opposite directions; and,third, to adjust the depth of cut or erasure, as will be seen. I attainthese objects by the mechanism illustrated in the accompanying drawings,in which- Y Figurcl is a perspective view of my stampcanceler. Fig.` 2is an elevation ofthe erasinghead ofthe canceler, from which the coverhas been removed in order to show the ends of one of the fixedoperating-pins. Fig. 3 is a vertical section of the same in the line x xof Fig. 2. Fig. 4 is a vertical section ofthe same in the line y y ofFig. Fig. 5 is a sectional view similar to Fig. 3, showing theerasing-head down as it appears at the end of its stroke. Fig. 6

' is a horizontal section in the line z z of Fig. 4.

Fig. 7 is a perspective view of the sliding frame which houses theoscillating Scrapers. Fig. 8 .is a sectional view of my canceler, havinga modified adjusting mechanism; and Fig. 9 is a perspective view of animplement which may be used as a canceler alone, or as a canceler andpost-office marker combined, as will be hereinafter described.

( Model.)

Similar letters refer to similar parts throughout the several views.

A represents the head of my canceler. B is a sleeve-cover, which servesto keep two horizontal operating-pins, a a', in place, thus avoiding thenecessity of riveting these pins and affording facilities for the readyseparation of the several parts as occasion may require. The lowerportion of the head A is provided with amortise, of oblong or othersuitable shape, in which a frame, C, of proper construction slides upand down. has two parallel walls, c, which fit the mortise c", and isprovided with a transverse pin, c.

The pin c forms the fulcrum of a number of disks, D, having slots d andserrated surfaces d. The slots d, as shown, receive the pins a a', sothat the disks D oscillate alternately in opposite directions when thefulcrum-pin c is moved up and down. The serrated surfaces d are slightlyeccentric with respect to the fulcrum-pin c, and by this means a greaterlength of erasing-surface is vsecured than when the said serratedsurfaces are made concentric to their fulcrums, inasmuch as they beginto erase at one side of their center and stop at the other side, whilethe Aconcentric surfaces erase only at or about the center line. Thenormal position of the erasing-disks is maintained by means of aset-screw, E, in the head A, an inclined extension, c2, ofthe frame C,and a tension-spring, F, in the upper end of the mortise a2 bearingagainst the frame C.

By screwingthe set-screw E toward or from the inclined extension c2, theframe may be adjusted farther up or down in the mortise cl, and thus bydepressing the head A until it touches the envelope the movement of thedisks D will be diminished or increased; and inasmuch as theerasing-surfaces d are eccentric, the length ofthe erasure can thus beadjusted at will to meet the different requirements of cancellati on.

By adjusting the frame C so as to expose a very small depth of theerasing-surfaces, the erasnres thus made will be veryshallow, which isdesirable when the stamps and envelopes are of very thin material andwould be partially torn by a deep erasure.

In Fig. 8 the mortisc c2 is shown with a bridge or a diaphragm, c3. TheframeOis provided with a screw-threaded shank, c3, which passesthrough-the diaphragm c3, and above it This frame O IOO 2 assume isprovided Wthanut, c. rIhe springFis, as in the former construction,(shown in Figs. 3 and 5,) located above the frame C, and bears againstthe under' surface of the diaphragm a. rI`he nut c* bears against theupper surface of said diaphragm, and by being screwed up or down itadjusts the depth of the erasing-disks.

I have shown my canceler with a horizontal handle, 1L, so that it may beoperated Vlike a hammer; butv although this is the most convenient fornifor the operator, avertical handle can be easily adopted with niyinvention.

In Fig. 9 Ihave shown two cancelers, one of which can be used alone, andanother paired with a marking-stamp, so that in case only canceling isrequired the instrument is used in the position shown, andin casecanceling and postmarking are required the instrument is used in areversed position, thereby saving the time and labor of removing themarking-stamp, as Well as the eXtra expense 'of providing two separateinstruments.

What I claim as my invention, and desire to secure by Letters Patent, is

`l. In a siamp-canceler, the combination, with a head, A7 having amortise, a2, of the operating-pins a a, the spring F, and a vertically-sliding frame, G, carrying a fulcrunrpin, c', andeccentrically-surfaced oscillating erasing-disks D, With slots d,substantially as and for the purpose described.

2. The sliding frame C, having an inclined extension, c2, in combinationwith the head A, having a set-screw, E, substantially as and for thepurpose described.

3. The oscillating erasing-disk D, having an eccentric erasing-surface,d, substantially as and for the purpose described.

4. The combination of the sleeve B, head A, having transverseactuating-pins a a', and eccentrically surfaced adjustable oscillating`disks D, substantially as and for the purpose described.

5. In a canceling-stamp, the combination of reversely-oscillated disksD7 set to adjoin one another, and having reVe'rsely-set eccentricerasing-surfaces d, substantially as and for the purpose described.

ALBERT LANDON.

Vitnesses:

YV. H. SPAULDING, A. A. DEMING.

